/* ==========================================================================
   TIMEPIECE — Minimalist Horology Studio
   Clean, quiet, focused industrial design
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Theme: Obsidian Dark (Default) */
  --bg: #0c0d11;
  --surface: #14161d;
  --surface-border: rgba(255, 255, 255, 0.07);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-tertiary: #4b5563;

  --accent-sbb-red: #eb0000;
  --accent-amber: #eab308;

  /* Swiss Clock Housing */
  --swiss-bezel-gradient: linear-gradient(135deg, #323742 0%, #171920 50%, #262a33 100%);
  --swiss-rim: #0e1014;
  --swiss-dial: #ffffff;
  --swiss-ticks: #111111;
  --swiss-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.7), 0 15px 30px -10px rgba(0, 0, 0, 0.5);

  /* Split Flap Housing */
  --flap-housing-bg: #14161c;
  --flap-housing-border: rgba(255, 255, 255, 0.08);
  --flap-bg-top: #1b1e25;
  --flap-bg-bottom: #16181f;
  --flap-text: #f9fafb;
  --flap-hinge: #0b0c10;
  --flap-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.7);

  /* Fluid Sizing Variables */
  --swiss-size: 370px;
  --card-w: 58px;
  --card-h: 90px;
  --card-font: 3.6rem;
  --housing-pad-y: 1.8rem;
  --housing-pad-x: 2.2rem;
  --flip-gap: 0.75rem;
  --unit-gap: 0.35rem;
  --colon-gap: 12px;
  --colon-dot: 6px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Theme: Swiss Gallery Light */
body.theme-light {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-border: rgba(0, 0, 0, 0.08);
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;

  --swiss-bezel-gradient: linear-gradient(135deg, #e5e9f0 0%, #cbd2dc 50%, #f1f4f8 100%);
  --swiss-rim: #94a3b8;
  --swiss-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.12), 0 12px 24px -8px rgba(0, 0, 0, 0.08);

  --flap-housing-bg: #e2e6eb;
  --flap-housing-border: rgba(0, 0, 0, 0.1);
  --flap-bg-top: #222630;
  --flap-bg-bottom: #1a1d26;
  --flap-text: #ffffff;
  --flap-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.14);
}

/* Theme: Warm Vintage */
body.theme-vintage {
  --bg: #14110e;
  --surface: #1e1914;
  --surface-border: rgba(255, 255, 255, 0.06);
  --text-primary: #fef3c7;
  --text-secondary: #a8947d;
  --text-tertiary: #6b5a49;

  --swiss-bezel-gradient: linear-gradient(135deg, #4a3b2c 0%, #201811 50%, #3d2f21 100%);
  --swiss-rim: #140f0a;
  --swiss-dial: #fefcf6;
  --swiss-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.8);

  --flap-housing-bg: #221b14;
  --flap-housing-border: rgba(255, 255, 255, 0.06);
  --flap-bg-top: #261e16;
  --flap-bg-bottom: #1b150f;
  --flap-text: #fef3c7;
  --flap-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.8);
}

/* Theme: Brushed Aluminium Skeuomorphic (Braun / Industrial) */
body.theme-braun {
  --bg: #191c22;
  --surface: #222630;
  --surface-border: rgba(255, 255, 255, 0.12);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;

  --swiss-bezel-gradient: conic-gradient(from 45deg, #a8b2be, #e2e8f0, #8e99a7, #cbd5e1, #85919f, #f1f5f9, #9ba6b4, #a8b2be);
  --swiss-rim: #1e293b;
  --swiss-dial: #f8fafc;
  --swiss-ticks: #0f172a;
  --swiss-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.75), inset 0 2px 4px rgba(255, 255, 255, 0.6);

  --flap-housing-bg: linear-gradient(180deg, #2b313d 0%, #1e222b 100%);
  --flap-housing-border: #475569;
  --flap-bg-top: #1a1e26;
  --flap-bg-bottom: #14171d;
  --flap-text: #ffffff;
  --flap-shadow: 0 32px 64px -16px rgba(0, 0, 0, 0.75);
}

/* Theme: Polished Brass & Mahogany Skeuomorphic */
body.theme-brass {
  --bg: #110d0a;
  --surface: #1c1510;
  --surface-border: rgba(245, 158, 11, 0.2);
  --text-primary: #fef08a;
  --text-secondary: #d97706;
  --text-tertiary: #78350f;

  --swiss-bezel-gradient: conic-gradient(from 30deg, #b45309, #fde047, #92400e, #fef08a, #78350f, #fef9c3, #b45309);
  --swiss-rim: #1c1008;
  --swiss-dial: #fffdf5;
  --swiss-ticks: #1f160e;
  --swiss-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.9), inset 0 2px 5px rgba(254, 240, 138, 0.6);

  --flap-housing-bg: linear-gradient(180deg, #2a1b12 0%, #170e09 100%);
  --flap-housing-border: #92400e;
  --flap-bg-top: #1f150e;
  --flap-bg-bottom: #160e09;
  --flap-text: #fde047;
  --flap-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.9);
}

/* Theme: Amber Phosphor CRT Skeuomorphic */
body.theme-amber {
  --bg: #05070a;
  --surface: #0c1017;
  --surface-border: rgba(245, 158, 11, 0.25);
  --text-primary: #ffaa1d;
  --text-secondary: #d97706;
  --text-tertiary: #92400e;

  --swiss-bezel-gradient: linear-gradient(145deg, #1f2533, #0b0e14, #191f2c);
  --swiss-rim: #07090e;
  --swiss-dial: #080b10;
  --swiss-ticks: #ffaa1d;
  --swiss-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.9), 0 0 40px rgba(255, 170, 29, 0.1);

  --flap-housing-bg: #090c12;
  --flap-housing-border: rgba(245, 158, 11, 0.3);
  --flap-bg-top: #0e121a;
  --flap-bg-bottom: #090c12;
  --flap-text: #ffaa1d;
  --flap-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.9), 0 0 30px rgba(255, 170, 29, 0.15);
}

/* Amber Theme Glow Enhancements */
body.theme-amber .flap .num {
  text-shadow: 0 0 14px rgba(255, 170, 29, 0.7), 0 0 2px rgba(255, 240, 200, 0.9);
}
body.theme-amber .dial-ticks rect {
  filter: drop-shadow(0 0 2px rgba(255, 170, 29, 0.8));
}
body.theme-amber .hand {
  fill: #ffaa1d;
  filter: drop-shadow(0 0 3px rgba(255, 170, 29, 0.6));
}
body.theme-amber .ampm-indicator {
  color: #ffaa1d;
  text-shadow: 0 0 8px rgba(255, 170, 29, 0.8), 0 0 16px rgba(217, 119, 6, 0.5);
  background: rgba(15, 20, 30, 0.7);
  border-color: rgba(245, 158, 11, 0.35);
}

/* Theme: Radioactive Radium Lume Glow */
body.theme-radium {
  --bg: #020503;
  --surface: #061108;
  --surface-border: rgba(74, 222, 128, 0.22);
  --text-primary: #52f676;
  --text-secondary: #22c55e;
  --text-tertiary: #15803d;

  --swiss-bezel-gradient: linear-gradient(145deg, #102416, #050d08, #132b1b);
  --swiss-rim: #020503;
  --swiss-dial: #040906;
  --swiss-ticks: #52f676;
  --swiss-shadow: 0 35px 80px -15px rgba(0, 0, 0, 0.95), 0 0 50px rgba(50, 230, 90, 0.22), 0 0 100px rgba(34, 197, 94, 0.1);

  --flap-housing-bg: #050d07;
  --flap-housing-border: rgba(74, 222, 128, 0.28);
  --flap-bg-top: #09170d;
  --flap-bg-bottom: #050d07;
  --flap-text: #52f676;
  --flap-shadow: 0 35px 80px -15px rgba(0, 0, 0, 0.95), 0 0 45px rgba(50, 230, 90, 0.2), 0 0 90px rgba(34, 197, 94, 0.1);
}

/* Radium Green Halo Lume Effects */
body.theme-radium .flap .num {
  text-shadow:
    0 0 3px #dcfce7,
    0 0 10px rgba(82, 246, 118, 0.95),
    0 0 24px rgba(34, 197, 94, 0.8),
    0 0 50px rgba(34, 197, 94, 0.5),
    0 0 85px rgba(34, 197, 94, 0.25);
}

body.theme-radium .dial-ticks rect {
  fill: #52f676;
  filter: drop-shadow(0 0 2px #dcfce7) drop-shadow(0 0 6px rgba(82, 246, 118, 0.9)) drop-shadow(0 0 16px rgba(34, 197, 94, 0.6));
}

body.theme-radium .hand {
  fill: #52f676;
  filter: drop-shadow(0 0 2px #ffffff) drop-shadow(0 0 8px rgba(82, 246, 118, 0.95)) drop-shadow(0 0 20px rgba(34, 197, 94, 0.75)) drop-shadow(0 0 40px rgba(34, 197, 94, 0.4));
}

body.theme-radium .second-stem {
  fill: #86efac;
  filter: drop-shadow(0 0 4px rgba(82, 246, 118, 0.9)) drop-shadow(0 0 12px rgba(34, 197, 94, 0.65));
}

body.theme-radium .second-disc {
  fill: #52f676;
  filter: drop-shadow(0 0 3px #ffffff) drop-shadow(0 0 10px rgba(82, 246, 118, 1)) drop-shadow(0 0 26px rgba(34, 197, 94, 0.85)) drop-shadow(0 0 50px rgba(34, 197, 94, 0.45));
}

body.theme-radium .colon-dot {
  background: #52f676;
  opacity: 0.95;
  box-shadow:
    0 0 4px #dcfce7,
    0 0 10px rgba(82, 246, 118, 0.95),
    0 0 22px rgba(34, 197, 94, 0.7);
}

body.theme-radium .flip-date-display {
  color: #86efac;
  text-shadow: 0 0 10px rgba(82, 246, 118, 0.75), 0 0 22px rgba(34, 197, 94, 0.45);
}

body.theme-radium .sbb-emblem rect:first-child {
  fill: #06150b;
}

body.theme-radium .sbb-emblem rect:not(:first-child),
body.theme-radium .sbb-emblem polygon {
  fill: #22c55e;
}

body.theme-radium .sbb-text-mark {
  fill: #22c55e;
  opacity: 0.65;
}

body.theme-radium .arbor-cap-outer {
  fill: #030804;
}

body.theme-radium .arbor-cap-inner {
  fill: #52f676;
  filter: drop-shadow(0 0 4px #52f676);
}

body.theme-radium .nav-pill.active {
  background: rgba(82, 246, 118, 0.16);
  color: #52f676;
  box-shadow: 0 0 14px rgba(34, 197, 94, 0.3);
}

body.theme-radium .btn-fullscreen:hover,
body.theme-radium .header-btn:hover {
  border-color: rgba(82, 246, 118, 0.45);
  color: #52f676;
  box-shadow: 0 0 16px rgba(34, 197, 94, 0.25);
}

body.theme-radium .ampm-indicator {
  color: #52f676;
  text-shadow: 0 0 8px rgba(82, 246, 118, 0.95), 0 0 18px rgba(34, 197, 94, 0.65);
  background: rgba(4, 20, 10, 0.7);
  border: 1px solid rgba(74, 222, 128, 0.35);
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.2);
}

body.theme-radium .theme-swatch.active {
  border-color: #52f676;
  box-shadow: 0 0 12px rgba(82, 246, 118, 0.45);
}


/* Base Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s var(--ease-out);
}

/* ==========================================================================
   TOP BAR (Minimal, non-distracting)
   ========================================================================== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  z-index: 10;
}

.brand-title {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
}

/* Segmented View Switcher */
.view-nav {
  display: inline-flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 3px;
  border-radius: 24px;
}

.nav-pill {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.4rem 1.1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.nav-pill:hover {
  color: var(--text-primary);
}

.nav-pill.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font-weight: 600;
}

body.theme-light .nav-pill.active {
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ghost-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.ghost-btn:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.hidden {
  display: none !important;
}

.clock-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4.5rem;
  padding: 1rem 3rem 2rem;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  transition: gap 0.5s var(--ease-out);
}

.clock-pod {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  max-width: 900px;
  opacity: 1;
  transform: scale(1);
  transition: opacity 0.45s var(--ease-out), 
              transform 0.5s var(--ease-out), 
              max-width 0.5s var(--ease-out), 
              margin 0.5s var(--ease-out);
  will-change: transform, opacity, max-width;
}

/* View Mode Toggles with Smooth Transitions */
.clock-stage.view-swiss {
  --swiss-size: 470px;
  gap: 0;
}

.clock-stage.view-swiss .flip-pod {
  opacity: 0;
  max-width: 0;
  margin: 0;
  transform: scale(0.8);
  pointer-events: none;
  overflow: hidden;
}

.clock-stage.view-flip {
  --card-w: 102px;
  --card-h: 156px;
  --card-font: 6.4rem;
  --housing-pad-y: 2.8rem;
  --housing-pad-x: 3.6rem;
  --flip-gap: 1.4rem;
  --unit-gap: 0.7rem;
  --colon-gap: 24px;
  --colon-dot: 10px;
  gap: 0;
}

.clock-stage.view-flip .swiss-pod {
  opacity: 0;
  max-width: 0;
  margin: 0;
  transform: scale(0.8);
  pointer-events: none;
  overflow: hidden;
}

/* Flip Date Indicator */
.flip-date {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  opacity: 0.75;
  text-align: center;
  transition: all 0.3s var(--ease-out);
}

/* ==========================================================================
   1. SWISS RAILWAY CLOCK (SBB CFF FFS)
   ========================================================================== */
.swiss-casing {
  position: relative;
  width: 370px;
  height: 370px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--swiss-bezel-gradient);
  box-shadow: 
    var(--swiss-shadow),
    inset 0 2px 3px rgba(255, 255, 255, 0.25),
    inset 0 -3px 6px rgba(0, 0, 0, 0.6);
  transition: all 0.35s var(--ease-out);
}

.casing-inner-rim {
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: var(--swiss-rim);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
}

.swiss-dial-svg {
  position: relative;
  z-index: 2;
  width: calc(100% - 30px);
  height: calc(100% - 30px);
  border-radius: 50%;
  shape-rendering: geometricPrecision;
  text-rendering: geometricPrecision;
}

.dial-face {
  fill: var(--swiss-dial);
}

.dial-ticks rect {
  fill: var(--swiss-ticks);
  shape-rendering: geometricPrecision;
}

.sbb-text-mark {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.16em;
  fill: #64748b;
}

.hand {
  fill: #111111;
  shape-rendering: geometricPrecision;
}

.second-stem {
  fill: var(--accent-sbb-red);
  shape-rendering: geometricPrecision;
}

.second-disc {
  fill: var(--accent-sbb-red);
  shape-rendering: geometricPrecision;
}

.hand-group {
  shape-rendering: geometricPrecision;
}

.glass-reflection {
  position: absolute;
  inset: 15px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.04) 40%,
    transparent 50%,
    rgba(255, 255, 255, 0.02) 100%
  );
  z-index: 5;
  pointer-events: none;
}

/* ==========================================================================
   2. SOLARI SPLIT-FLAP MECHANICAL FLIP CLOCK
   ========================================================================== */
.flip-housing {
  position: relative;
  background: var(--flap-housing-bg);
  border: 1px solid var(--flap-housing-border);
  border-radius: 20px;
  padding: var(--housing-pad-y) var(--housing-pad-x);
  box-shadow: 
    var(--flap-shadow),
    inset 0 1px 1px rgba(255, 255, 255, 0.1),
    inset 0 -1px 2px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: padding 0.5s var(--ease-out), border-radius 0.5s var(--ease-out);
}

.flip-display-row {
  display: flex;
  align-items: center;
  gap: var(--flip-gap);
  transition: gap 0.5s var(--ease-out);
}

.flip-unit {
  display: flex;
  gap: var(--unit-gap);
  transition: gap 0.5s var(--ease-out);
}

/* Flip Digit Card */
.flip-card {
  position: relative;
  width: var(--card-w);
  height: var(--card-h);
  perspective: 420px;
  border-radius: 7px;
  background: #090a0d;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.45);
  user-select: none;
  transition: width 0.5s var(--ease-out), height 0.5s var(--ease-out);
}

.flap {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background-color: var(--flap-bg-top);
}

.flap.top {
  top: 0;
  border-radius: 6px 6px 0 0;
  transform-origin: bottom center;
  border-bottom: 0.8px solid var(--flap-hinge);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.flap.bottom {
  top: 50%;
  border-radius: 0 0 6px 6px;
  transform-origin: top center;
  background-color: var(--flap-bg-bottom);
  border-top: 0.8px solid var(--flap-hinge);
  box-shadow: inset 0 -2px 3px rgba(0, 0, 0, 0.35);
}

.flap .num {
  position: absolute;
  width: 100%;
  height: var(--card-h);
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: var(--card-font);
  font-weight: 700;
  color: var(--flap-text);
  letter-spacing: -0.04em;
  line-height: var(--card-h);
  text-align: center;
  transition: font-size 0.5s var(--ease-out), height 0.5s var(--ease-out), line-height 0.5s var(--ease-out);
}

.flap.top .num {
  top: 0;
}

.flap.bottom .num {
  bottom: 0;
}

.hinge-axis {
  position: absolute;
  top: calc(50% - 1px);
  left: 0;
  width: 100%;
  height: 2px;
  background: #07080a;
  z-index: 8;
  pointer-events: none;
}

/* 3D Flip Stacking & Animations */
.flap-top-back { z-index: 1; }
.flap-bottom-front { z-index: 2; }
.flap-bottom-back { z-index: 1; transform: rotateX(90deg); }
.flap-top-front { z-index: 3; }

.flip-card.flipping .flap-top-front {
  animation: flipDownTop 0.3s cubic-bezier(0.45, 0, 0.7, 1) forwards;
}

.flip-card.flipping .flap-bottom-back {
  animation: flipDownBottom 0.3s cubic-bezier(0.15, 0.8, 0.4, 1) 0.15s forwards;
  z-index: 4;
}

@keyframes flipDownTop {
  0% { transform: rotateX(0deg); filter: brightness(1); }
  100% { transform: rotateX(-90deg); filter: brightness(0.35); }
}

@keyframes flipDownBottom {
  0% { transform: rotateX(90deg); filter: brightness(0.35); }
  100% { transform: rotateX(0deg); filter: brightness(1); }
}

/* Subtle Colon Separators */
.flip-colon {
  display: flex;
  flex-direction: column;
  gap: var(--colon-gap);
  padding: 0 0.15rem;
  transition: gap 0.5s var(--ease-out);
}

.colon-dot {
  width: var(--colon-dot);
  height: var(--colon-dot);
  border-radius: 50%;
  background: var(--text-tertiary);
  opacity: 0.6;
  transition: width 0.5s var(--ease-out), height 0.5s var(--ease-out);
}

/* 12h AM/PM Flag */
.ampm-indicator {
  display: none;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
  letter-spacing: 0.08em;
  margin-left: 0.3rem;
  transition: all 0.3s var(--ease-out);
}

body.format-12h .ampm-indicator {
  display: inline-block;
}

/* ==========================================================================
   BOTTOM STATUS
   ========================================================================== */
.app-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.25rem;
  z-index: 5;
}

.fullscreen-pill-btn {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 500;
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.fullscreen-pill-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

/* ==========================================================================
   UNIVERSAL FULLSCREEN MODE (Swiss, Flip, or Dual)
   ========================================================================== */
body.mode-fullscreen {
  background-color: var(--bg);
}

body.mode-fullscreen .app-header {
  display: none !important;
}

body.mode-fullscreen .clock-stage.view-flip .flip-date {
  display: block !important;
  font-size: min(2.2vw, 1.4rem);
  letter-spacing: 0.16em;
  margin-top: min(3vh, 2.2rem);
  opacity: 0.85;
}

body.mode-fullscreen .clock-stage {
  padding: 0;
  max-width: 100vw;
  width: 100vw;
  height: 100vh;
  gap: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Swiss Clock in Fullscreen */
body.mode-fullscreen .clock-stage.view-swiss .swiss-casing {
  width: min(84vh, 84vw);
  height: min(84vh, 84vw);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.8);
}

/* Flip Clock in Fullscreen (Borderless, maximum scale) */
body.mode-fullscreen .clock-stage.view-flip .flip-pod {
  width: 100vw;
  max-width: 100vw;
  gap: 0;
}

body.mode-fullscreen .clock-stage.view-flip .flip-housing {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

body.mode-fullscreen .clock-stage.view-flip .flip-card {
  width: min(13vw, 175px);
  height: min(20vw, 270px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7);
}

body.mode-fullscreen .clock-stage.view-flip .flap .num {
  font-size: min(16vw, 11.5rem);
  height: min(20vw, 270px);
  line-height: min(20vw, 270px);
}

body.mode-fullscreen .clock-stage.view-flip .flip-display-row {
  gap: min(2vw, 26px);
}

body.mode-fullscreen .clock-stage.view-flip .flip-unit {
  gap: min(1vw, 12px);
}

body.mode-fullscreen .clock-stage.view-flip .flip-colon {
  gap: min(3vw, 36px);
}

body.mode-fullscreen .clock-stage.view-flip .colon-dot {
  width: min(1.2vw, 14px);
  height: min(1.2vw, 14px);
}

/* Dual Mode in Fullscreen */
body.mode-fullscreen .clock-stage:not(.view-swiss):not(.view-flip) {
  gap: 3rem;
}

body.mode-fullscreen .clock-stage:not(.view-swiss):not(.view-flip) .swiss-casing {
  width: min(56vh, 42vw);
  height: min(56vh, 42vw);
}

/* Auto-hiding Bottom Fullscreen Button */
body.mode-fullscreen .app-footer {
  position: fixed;
  bottom: 2rem;
  left: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}

body.mode-fullscreen .app-footer.visible,
body.mode-fullscreen .app-footer:hover {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}


/* ==========================================================================
   SETTINGS FLYOUT DRAWER (Tastefully concealed)
   ========================================================================== */
.settings-drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  visibility: hidden;
}

.settings-drawer.open {
  pointer-events: auto;
  visibility: visible;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.28s var(--ease-out);
}

.settings-drawer.open .drawer-backdrop {
  opacity: 1;
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 340px;
  max-width: 90vw;
  background: var(--surface);
  border-left: 1px solid var(--surface-border);
  box-shadow: -15px 0 35px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s var(--ease-out);
}

.settings-drawer.open .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 1.8rem;
  border-bottom: 1px solid var(--surface-border);
}

.drawer-header h2 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.drawer-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem;
}

.drawer-close-btn:hover {
  color: var(--text-primary);
}

.drawer-body {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  overflow-y: auto;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.setting-item label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Custom Dropdown Component */
.custom-select {
  position: relative;
  width: 100%;
}

.custom-select-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  color: var(--text-primary);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 0.65rem 0.85rem;
  font-size: 0.82rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.custom-select-trigger:hover,
.custom-select.open .custom-select-trigger {
  border-color: rgba(255, 255, 255, 0.25);
}

.custom-select-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.custom-select-chevron {
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: transform 0.22s var(--ease-out);
}

.custom-select.open .custom-select-chevron {
  transform: rotate(180deg);
}

.custom-select-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
  max-height: 220px;
  overflow-y: auto;
  z-index: 50;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.2s var(--ease-out), transform 0.2s var(--ease-out), visibility 0.2s;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.custom-select.open .custom-select-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  visibility: visible;
}

.custom-option {
  padding: 0.55rem 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
}

.custom-option:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.custom-option.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font-weight: 600;
}

.segment-group {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 3px;
  gap: 3px;
}

.segment-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 500;
  padding: 0.45rem 0.2rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.segment-btn:hover {
  color: var(--text-primary);
}

.segment-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font-weight: 600;
}

body.theme-light .segment-btn.active {
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Theme Swatches */
.theme-swatches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.theme-swatch {
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  padding: 0.6rem 0.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.theme-swatch:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

.theme-swatch.active {
  border-color: var(--accent-sbb-red);
}

.swatch-circle {
  width: 18px;
  height: 18px;
  border-radius: 50%;
}

.swatch-circle.obsidian { background: #0c0d11; border: 1px solid #333; }
.swatch-circle.light { background: #f4f5f7; border: 1px solid #ccc; }
.swatch-circle.vintage { background: #221b14; border: 1px solid #5a4331; }
.swatch-circle.braun { background: linear-gradient(135deg, #e2e8f0, #64748b); border: 1px solid #94a3b8; }
.swatch-circle.brass { background: linear-gradient(135deg, #fef08a, #b45309); border: 1px solid #d97706; }
.swatch-circle.amber { background: #05070a; border: 1px solid #ffaa1d; box-shadow: inset 0 0 6px #ffaa1d; }
.swatch-circle.radium { background: #040905; border: 1px solid #52f676; box-shadow: 0 0 6px rgba(82, 246, 118, 0.8), inset 0 0 4px #22c55e; }

.swatch-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.drawer-action-btn {
  background: transparent;
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
}

.drawer-action-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Responsive */
@media (max-width: 900px) {
  .clock-stage {
    flex-direction: column;
    gap: 2.5rem;
    overflow-y: auto;
  }
  
  .swiss-casing {
    width: 280px;
    height: 280px;
  }

  .flip-card {
    width: 44px;
    height: 68px;
  }

  .flap .num {
    font-size: 2.7rem;
    height: 68px;
    line-height: 68px;
  }
}